Ball-bearing.



A. F. ENGLERTH & A. BANDURA.

BALL BEARING.

APPLICATION FILED APR.3,1916.

1,197,466. Patented 5,1916.

2 SHE HEET I.

' Inventors- Anton F. Engierth Andrew Bandura A. F. ENGLERTH & A. BANDURA.

BALL BEARING. APPLICATION FILED APR. 3, 1916.

SHEET 2.

Patented Sept.

m r/A66.

Z SHEETS d 1 WW5 m ,nd mm n A? ion;

. .ASSIGNOR T0 SOFUS J. CHRISTENSEN, OF.CHIOAG O, ILLINOIS BALL-BEARING.

Specification of Letters Patent.

Patented Se a. 5, leis.

Application filed April 3, 1916. Serial No. 88,658. I

To all whomc't may concern Be it known that we, ANTON F. ENG- Lnn'rrr, a subject of the King of Hungary, and ANDREW BANDURA, a citizen of the United States, residents of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ball-Bearings, of which the following is a specification.

This invention relates to a ball bearing, adapted to be used in mill work on shaftings, and inother places.

To. those familiar with the art it is well known that ball bearings comprising an inner and an outer ring, balls and a ball. retainer interposed between said rings, are 1n common use, the inner ring being adapted to be firmly secured to a shaft and the outer ring adapted to be held stationary in {a housing or bearing and that said ball bears ings are adapted for either low or high speed shaftings. v

The object of the invention is to obtain at small cost a durable ball bearing comprising an inner and an outer ring respectively provided with race-ways, balls, positioned and adapted to run in said race-way and a retainer adapted to hold said balls in i said race-ways and in a predetermined rela tive position.

In the drawings accompanying and forming a part of this specification; Figure 1, is a plan view of ribbon stock' preferably fiat wire partially formed to make the ball. retainer which we use in this device. Fig. 2, illustrates the partial formed ribbon in relative position to a section of the die and punch prior to the descent of said punch. Fig. 3, illustrates said partial formed ribbon in relative position to a section of the die and punch subsequent to the operation and the withdrawal of said punch and prior to the feeding forward of the ribbon stock for the succeeding operation of said punch.

Fig. 4, is a perspective view of a portion of the ball retainer formed from ribbon stock showing the meeting ends of said ribbon stock. Fig. 5, 1s a perspective of a portion of a modifiedform of a ball retainer. F igf 6, is a top plan view of an assembling table with the ball retainer in position" thereon. Fig. 7 is a vertical section of the table illus View of the finished bearing with portions thereof, removed to expose the several parts to view.

B and D are'portions of a two part die,

ANTON E. ENGLEBTH AND ANDREW BANDURA, OF CHICAGO, ILLriroIs-,-sAID nl t'iinnaia B being the bed-piece thereof, provided with recess E, and the former, or punch, by means ofwhich the formed up parts a, a are obtained, by swaging the ribbon stock A between them.

The ribbon stock. A being a straight strip of metal'and the completed ball retainer obtained therefrom being circular, as is well" illustrated in. Fig. 6 of the drawings, it is necessary to so form the recess E in bed-v piece B and the former D, as to obtain the curve desired. For this purpose the edge or face ((Z) of the former D is made longer and-narrower than the edge or face (Z and said recess E (F ig..2) is made of corresponding shape. In swaging upv the ribbon stock A it is fed to the bed plate B and former D, in such manner that as the die B Figs. 2 and 3, forced on the front face ((Z') thereof, lower than the back face (Z F is-astripper provided with aperture through which the former D descends when operating toforce the ribbon stock into recess E in bed-piece B of the die, said stripper F preventing said ribbon stock adhering to said punch. Means are provided in the ordinary way for permitting the stripper F to be raised when the ribbon stock-is forced upward out of the recess E by means of the vertical push rod G.

.H is a small ring'of the bearing and is provided with the race or runway ring it and also with the vertical groove if.

I is the outer ring of the bearing and is provided with the race-way 2' and vertical groove 2' The vertical grooves, h and 71 respectively communicate at the lower ends with the race-wayv h, 11 and the function of said vertical grooves is to permit the balls,

lot

J, J to be put into the race-way k, i, and

bon stock are in contact andmay be brazed N or welded together.

The partially made ball retainer, after the same has been swaged up, is circular in form and is substantially. the same throughout as is the portion thereof which is illustrated in Fig. and as shown in top plan view in Fig. 5.

It will be noticed on reference to Figs. 1 to 4:, all inclusive, that the partially completed ball retainer is shown "with the re cesses L in which the balls are to be inserted, open downward, while in Fig. 5, said partially completed retainer (lettered M) is placed on the raised annular table n of the assembling bed M, with said recesses opening upward so the balls may be dropped thereinto. In assembling the bearing embodying our invention the rings H and I are placed on the assembling bed N and balls J are dropped into the said recess L through the passageway formed by the vertical grooves b i In this dropping vof the balls into said recesses the partially completed ball retainer M is turned so that said balls will be deposited in successive ones of said recesses.

In the modification illustrated in 5, a portion of the edge of the ball retainer is cut away as on lines Q. After the bearing is assembled the spring wire 9 is placed in said cut away portion of the ball retainer. This avoids the necessity of flattening down thi up portion of the walls of the several recesses, as at P.

After a ball has been deposited in the manner above set forth in the same recess L, said balls also being race-ways h, i, the punch 0, (Fig. 7) is forced downward on to the upper edges of the partially formed ball retainer M, that is onto the curved ends of the recess L which are switched out by the extreme lower end of the former D, thereby forcing said upper ends into substantially horizontal plane, (lettered P in Figs. 7 and 8). The forcing of said upper edges of the partially formed retainer into substantially horizontal planes completes the making of said retainer and by said completion the portion of the side walls of the recesses L which are adjacent to the ends of the horizontal plane P are forced inward toward the balls J enough to so close the inlet to said recess L that at the only time said balls can leave the race-ways h, 2', independently of the ball retainer M, (at the time said balls move into osition registering with the passageway o tained by vertical grooves 79, al they are held in place by said ball retainer. The said ball retainer performs the additional function of separating the balls J and holding the same in spaced-relation to each I other.

1. A ball bearing comprising concentric rings respectively provided with race-Ways, and balls in said race-ways, in combination with a ball retaining member consisting of a metal ribbon bent to obtain recesses, alternate ones of said recesses adapted to contain said balls, the inner edges of alternate bends extending beyond the outer edges thereof, to force the formed up ribbon into a circular form with the ends thereof meeting.

2. A ball bearing comprising concentric rings respectively provided with race-ways, and balls in said race-ways, in combination with a ball retaining member consisting of a metal ribbon bent to obtain recesses, alternate ones of said recesses adapted to contain said balls, the inner edges of alternate bends extending beyond the outer edges thereof,

to force the formed up ribbon into a circular form with the ends thereof meeting, and said bends forced down on to the balls in the ball recesses.

ANTON F. ENGLERTH. ANDREW BANDURA.

/Vitnesses:

CHARLES TURNER BROWN, HELYN MULDOWNEY. 

